The **W2AC-A14A-R/N** belongs to a series of high-performance AC-input fans, typically associated with cooling solutions for industrial machinery, server racks, and power supplies. Below is a detailed breakdown of its electronic and mechanical parts. --- ### 1. Technical Specifications The following table outlines the core electronic and physical parameters: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 100V - 120V AC (Standard) | | **Frequency** | 50/60 Hz | | **Current Consumption** | Approx. 0.20A - 0.25A | | **Power Rating** | ~18W - 22W | | **Speed (RPM)** | ~2700 - 3100 RPM | | **Bearing Type** | Dual Ball Bearing | | **Frame Material** | Die-cast Aluminum | --- ### 2. Electronic Component Breakdown #### A. The Motor (Shaded Pole or Capacitor Run) The heart of the unit is an AC induction motor. - **Stator:** Comprised of copper windings around a laminated steel core. These generate the electromagnetic field required for rotation. - **Rotor:** A squirrel-cage rotor design integrated into the fan blades (external rotor design), which saves space and improves cooling efficiency for the motor itself. #### B. The Bearing System The **"R/N" suffix** often denotes a specific bearing or lead-wire configuration. - **Dual Ball Bearings:** These are used to ensure a long lifespan (L10 life of 50,000+ hours) and allow the fan to be mounted in any orientation (horizontal, vertical, or angled) without affecting performance. #### C. Circuit Protection - **Impedance Protection:** The motor windings are designed to have high impedance. If the fan blades are physically obstructed (locked rotor), the internal resistance prevents the current from rising to a level that would cause a fire or melt the insulation. - **Thermal Cutoff (Optional):** Some variants include a thermal fuse that breaks the circuit if the internal temperature exceeds a safe threshold (e.g., 120°C). #### D. Termination (Wiring) - **Lead Wires:** Typically features two or three wires (Line, Neutral, and sometimes a Ground or Speed Sensor). - **Plug-in Terminals:** Some "R" variants use spade terminals instead of flying leads for quick connection in modular industrial racks. --- ### 3. Part Number Decoding (Typical) | Segment | Meaning | | :--- | :--- | | **W2** | Series designation (Standard Industrial AC) | | **AC** | Input Current Type (Alternating Current) | | **A14** | Frame size (approx. 120mm x 120mm x 38mm) | | **A** | Voltage Code (e.g., 115V) | | **R/N** | Revision or specialized terminal/housing type | --- ### 4. Application Context These parts are electronically tuned for high static pressure and continuous operation. They are commonly found in: 1. **Uninterruptible Power Supplies (UPS)** 2. **Industrial Control Cabinets** 3. **Medical Imaging Equipment**